Snmp agent vacmViewTreeFamily with non 'null' mask bugfix

Adresses problems desciribed in
http://erlang.org/pipermail/erlang-bugs/2015-April/004891.html
http://erlang.org/pipermail/erlang-patches/2015-April/004766.html

The original patch also suggested the following fix.
However we need more information to be able to understand if
this is correct or not, and it does not have priority at the moment
for us to investigate.

@@ -816,7 +816,7 @@ next_node(D, {tree, Tree, {table_entry, _MibName}},
 	"~n   RevOidSoFar: ~p"
 	"~n   MibView:     ~p", [size(Tree), Oid, RevOidSoFar, MibView]),
     OidSoFar = lists:reverse(RevOidSoFar),
-    case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar, MibView) of
+    case snmpa_acm:is_definitely_not_in_mib_view(OidSoFar ++ Oid, MibView) of
 	true ->
 	    ?vdebug("next_node(tree,table_entry) -> not in mib view",[]),
 	    false;

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/snmp/src/agent/snmpa_acm.erl b/lib/snmp/src/agent/snmpa_acm.erl
index 7327575846..0264c6a992 100644
--- a/lib/snmp/src/agent/snmpa_acm.erl
+++ b/lib/snmp/src/agent/snmpa_acm.erl
@@ -280,7 +280,7 @@ validate_mib_view(Oid, MibView) ->
     end.
 
 get_largest_family([{SubTree, Mask, Type} | T], Oid, Res) ->
-    case check_mask(Oid, SubTree, Mask) of
+    case check_mask(Oid, SubTree, snmp_view_based_acm_mib:emask2imask(Mask)) of
 	true -> get_largest_family(T, Oid, add_res(length(SubTree), SubTree,
 						   Type, Res));
 	false -> get_largest_family(T, Oid, Res)
@@ -345,7 +345,7 @@ validate_all_mib_view([], _MibView) ->
 %% intelligent.
 %%-----------------------------------------------------------------
 is_definitely_not_in_mib_view(Oid, [{SubTree, Mask,?view_included}|T]) ->
-    case check_maybe_mask(Oid, SubTree, Mask) of
+    case check_maybe_mask(Oid, SubTree, snmp_view_based_acm_mib:emask2imask(Mask)) of
 	true -> false;
 	false -> is_definitely_not_in_mib_view(Oid, T)
     end;